Hyatt used to have a super generous and game-able offer where anyone with even Hilton Gold (through a credit card signup) could get temporary Diamond status complete with confirmable suite upgrades.
Park Hyatt Chennai
They eliminated that last fall, and have been on again, off again at best with select status challenges that do not ‘advance’ top tier elite status.
Now they’re back it seems.
Diamond Room Service Breakfast at the Park Hyatt Vendome, Paris
It appears they are comping Diamond status through February 2017 to anyone who connects with them on Twitter and sends in an eligible elite membership card and a statement that shows one stay.
I maintain Hyatt Diamond status and am pleased. I receive (4) confirmed upgrades each year that are good for a confirmed at booking suite on any paid Hyatt rate up to 7 nights each. Hyatt has the best breakfast benefit (full restaurant breakfast for up to 4 registered guests when no club lounge is available at full service hotels).
If you have status with another hotel chain and a statement showing 1 stay or more, it’s worth messaging @HyattConcierge on Twitter.